Improvement in apparatus for compressing and molding artificial fuel



R. HAYVES. I Apparatus for Gompresi-n'g: and Molding Artificial PatentedAprii7,i874.

UNITED i STATES PATENT QFFIon;

t JOSHUA R. HAYES, OF WASHINGTON, DISTRICT OF COLUMBIA, ASSIGNOR OFONE-HALF HIS RIGHT TO MORRIS MATTSO, OF NEW YORK CITY.

-- IMPROVEMENT IN APPARATUS FOR COMPRESSING AND MOLDING ARTIFICIAL FUEL,

I! l Specification forming part of Letters Patent No. 149,396, datedApril 7, 1874; application filed March 11, 1874.

ycompounded with materials for adhesion and combustion, but is moreespecially adapted for the composition prepared in accordance withspecilication in Letters Patent issued to me March 4, 187 3, andnumbered 136,375.

Figure l, view of machine in elevation; Fig.

4 2, cylinders detached; Fig. 3, tamper in its relation tomolding-cylinders.

I construct two cylinders, M1 M2, cast of iron or other suitable metal,each cylinder resting upon shafts S S, and these shafts adjusted to aframe, F. Upon these cylinders I cast as many dies or cavities ofrequisite size and formas the face of the cylinders will admit of, a, a.Then these cylinders are moved by the gear-wheels g g, a space of aboutone-sixteenth of an inch is necessary to be maintained bctween them inorder that the material to be molded shall freely enter the cavities,and be pushed out when in excess. This space is produced by a slightelevation, c c, 011 the sides of the cylinder M2. H is the hopper orfeeder. In this hopper works the tamper T by the lifting-rods R R,attached to cams or eccentrics ai and moved by the gear and crank C. Apositive pressing motion equal to the power represented by the gearingis thus produced by the tamper on the contents of the hoppera conditionnecessary before the coal-dust concrete can be successfully molded bythe cavities in the cylinders.

Then the coal-dust concrete is placed in the hopper, and the cylindersrevolved by the crank, belt, or pulley wheel, the motion ofthe cylinderscreates suction, and the material to be pressed andmoldedis carried downbetween the cylinders. The tamper solidiies and fills the cavities atevery revolution, and reaching finally the contingent point of the twocylinders, the contents of two cavities come together, and the mold iscomplete, as shown at l? l?. These molds fall upon a screen, S2, orinclined plane, whence they are taken to any point desired. In thismanner the coal-dust concrete is so successfully compressed and moldedthat the necessity for ovens for drying the molded coal is avoided.

This machine can be operated either by hand or steam power, and. on anyscale of magnitude desired I claim- 1. The tamper T, operated by therods R R and eccentrics attached to gearing, in combination withcylinders Ml M2, by which pressure is exerted on contents of hopper Hequal to the driving power, for the purpose described.

2. The operating devices for compressing and molding coal-dust concrete,consisting of cylinders M1 M2, having cavities a a and elevations c c,hopper H, and tamper T, the whole constructed and operated in the mannerand for the purpose I have described.

J. R. HAYES, M. I).

W'itnesses S. D. LAW, A. T. GURLITZ.

